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SUMMARY:Revealing Multiple-planet Architectures with the ExoStriker toolbo
 x - Trifon Trifonov (MPIA)
DTSTART:20230228T130000Z
DTEND:20230228T140000Z
UID:TALK197797@talks.cam.ac.uk
CONTACT:Dr Emily Sandford
DESCRIPTION:I will discuss the challenges of modeling exoplanet data consi
 stent with multiple-planet systems\, focusing on the gravitational interac
 tions and resulting transit time variations (TTVs) and deviations from mul
 ti-keplerian RV predictions. These dynamical signals provide valuable info
 rmation about the orbital architecture and dynamical masses of exoplanets.
  I will highlight recent TTVs discoveries made by TESS\, specifically warm
  giant-mass pairs near a 2:1 mean motion resonance (MMR). To aid in detail
 ed analysis of transit and Doppler data\, astrometry\, and spectral line a
 ctivity analysis\, I will also demonstrate the free\, fast\, and powerful 
 Exo-Striker GUI exoplanet toolbox. Exo-Striker offers a wide range of tool
 s\, including Keplerian and dynamical modeling of multi-planet systems\, M
 CMC and nested sampling\, Gaussian Processes modeling\, N-body long-term s
 tability checks of multi-planet systems\, MMR analysis\, fast interactive 
 plotting\, and the ability to export LaTeX tables with best-fit parameters
 \, errors\, and statistics. Additionally\, Exo-Striker provides access to 
 the RVBank database\, which contains over 300\,000 unique RVs and activity
  indices from HARPS and HIRES. With a combination of Fortran efficiency an
 d Python flexibility\, Exo-Striker is cross-platform compatible (MAC OS\, 
 Linux\, Windows) and easy to use.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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